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In 2015, a random sample of 532 college students was selected and 21.2% of them were found to be overweight. List and check the assumptions
- In 2015, a random sample of 532 college students was selected and 21.2% of them were found to be overweight.
- List and check the assumptions are needed to construct a 90% confidence interval to estimate the true proportion of overweight college students.
- Construct and interpret a 90% confidence interval to estimate the true proportion of overweight college students.
- You would like to conduct a new study to estimate the true proportion of overweight college students. Using the percentage from the previous study, how large of a sample would be required to construct a 90% confidence level with a 2% margin of error?
- You would like to conduct a new study to estimate the true proportion of overweight college students. If you had no previous knowledge about the proportion of college students who are overweight, how large of a sample would be required to construct a 90% confidence level with a 2% margin of error?
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Probability and Random Processes With Applications to Signal Processing and Communications
Authors: Scott Miller, Donald Childers
2nd edition
123869811, 978-0121726515, 121726517, 978-0130200716, 978-0123869814
